github.com/juju/juju/provider/dummy unit tests fail if xenial is the LTS

[Cheryl Jennings]

The following tests fail for this pacakge when xenial is the default lts (from distro-info --lts):

FAIL: <autogenerated>:20: liveSuite.TestBootstrapMultiple
FAIL: <autogenerated>:22: liveSuite.TestGlobalPorts
FAIL: <autogenerated>:23: liveSuite.TestPorts
FAIL: <autogenerated>:26: liveSuite.TestStartStop
FAIL: environs_test.go:247: suite.TestAllocateAddress
FAIL: environs_test.go:138: suite.TestAvailabilityZone
FAIL: <autogenerated>:43: suite.TestBootstrap
FAIL: environs_test.go:327: suite.TestNetworkInterfaces
FAIL: environs_test.go:578: suite.TestPreferIPv6Off
FAIL: environs_test.go:564: suite.TestPreferIPv6On
FAIL: environs_test.go:286: suite.TestReleaseAddress
FAIL: <autogenerated>:44: suite.TestStartStop
FAIL: environs_test.go:450: suite.TestSubnets
FAIL: environs_test.go:150: suite.TestSupportsAddressAllocation
FAIL: environs_test.go:210: suite.TestSupportsSpaceDiscovery
FAIL: environs_test.go:183: suite.TestSupportsSpaces

[Eric Snow (ericsnowcurrently)]

http://reviews.vapour.ws/r/4678/

[Cheryl Jennings (cherylj)]

Please also evaluate if these failures exist on 1.25.